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3 years ago

What is 4C (matrix) ?

Mathematics

1 answer:

Cerrena [4.2K]3 years ago

4 0

The 4C matrix is obtained when all elements of matrix C are multiplied by 4. It <span>has all the same elements as C, only multiplied by 4.
Let's analyze all matrices
A. Not all elements of A can be divided by 4 (3 can not be divided by 4, the solution is not a whole number).
B. All elements of matrix B can be divided by 4, which means that B is a $C matrix (there is a matrix C which multiplied by 4 gives the matrix B).
C. Not all elements of C can be divided by 4.
D. Not all elements of D can be divided by 4.

Solution: B
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3 years ago

Maggie says that if the expression was 12÷3to the second power, you would divide before simplifying 3 to the second power. Is sh

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Answer:

Maggie is incorrect.

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3 years ago

The product of x and the sum of 6 and 8 times the square of x

Vaselesa [24]

Answer:

x(6 + 8x²) or 6x + 8x³.

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3 years ago

Read 2 more answers

The histogram shows the ages of cars sold at a car auction. what percent of the cars was less than 20 years old or more than 40

Alexus [3.1K]

The histogram is attached. Every column shows on the bottom the range of age and on the left the number of cars of that particular age.

In order to find the percentage of cars with less than 20 years or more than 40 years, you have to sum up the numbers of cars in the first two columns from left (age 0-9 and 10-19) and the last two (age 40-49 and 50-59).
The number of cars of requested age is: 3 + 2 + 0 + 3 = 8

Now, you need to calculate the total number of cars (sum the cars of every column): 3 + 2 + 8 + 4 + 0 + 3 = 20

Lastly, you need to calculate the ration between the cars of requested age and the total number of cars, and transform it into a percentage:
8 ÷ 20 = 0.40 = 40%

Therefore, your answer is 40%.

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3 years ago